In the event any portion of Section 115 of the unemployment compensation amendments of 1976 (Public Law 94-566, 94th Congress, dated October 20, 1976), as it applies to the requirement for states to provide coverage of certain services performed for local governmental entities under the various states' unemployment compensation law, is determined to be unconstitutional or invalid in a final adjudication by the courts of the United States, then from and after the date of such final adjudication, no local governmental entity of any county or municipality in the State of Alabama or their instrumentalities, or any separate public primary and secondary school system, as defined in Section 25-4-10, shall be required to participate in the unemployment compensation program; provided, that nothing herein shall be construed as invalidating the entitlement of such entities to elect coverage for their hospitals or institutions of higher education; provided further, that nothing herein shall be construed as relieving any entity of the responsibility for any contributions or payments in lieu of contributions incurred during the period prior to the date of the final adjudicational determination by the courts; provided further, that in the event any local governmental entity shall become a part of any suit in the courts of the United States challenging the constitutionality of the provisions of Section 115 of PL 94-566 and such court, of competent jurisdiction, shall temporarily stay the implementation of said provision of federal law, then during the effective period of such stay, the coverage of said services shall be stayed in this state but shall be applicable only to those entities that are, or are made, a party to the suit or included in the stay.